Oh hi. Yes, I have this as well - a Japanese Love Tester with an English-language instruction sheet. Yours is slightly different than mine but clearly came from the same place. Besides mine, I've seen another one come up on eBay a few years back, which Steve Lin got. So they definitely come up from time to time.
This seems to fall into a fairly common category with Nintendo toys that were distributed in the U.S., which is that a wholesaler bought the Japanese versions of the toys from Nintendo and then repackaged them for America, in this case just taking a retail Love Tester and putting an English instruction sheet in it.
So far, my experience with a lot of these Nintendo toys is that they are very hard to find but demand is very low. There aren't a lot of collectors here looking to buy these toys, which keeps the price down when one does pop up. People love to put these up for high BINs but they tend to not move. I got mine for around $100 a year or two ago; I'd say putting this up for $249.99 or even $199.99 and entertaining offers would be a good move here. It IS rare, it IS cool, but demand's just not there.
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